Be aware here last night some would be tea leaf tried to force my fuel cap off my fridge was running so didn’t hear anything luckily for me the lock held 
There’s some gypsies a few miles up the road near Avonmouth so could’ve been them, and those services are pretty quiet especially on a Sunday night.
If I remember right there were only two of you in there when I went in to gas up about 21.oo plus one of Rick Bestwick’s on a 45.They must have some nerve to try it on when there is so little cover.